Question

I have these tables:

table_a

user_id
article_id
created_at

articles

user_id
created_at
...

I need to obtain all rows from both tables for the respective user (lets say user_id=1) and sorted them by the column created_at. How to do that?

I have tried to do it this way:

Model.find_by_sql('SELECT table_a.* FROM table_a JOIN articles ON articles.user_id = 1 WHERE table_a.user_id = 1')

But this query won’t work.

Answer 1

I would give a try to following query:
SELECT table_a.*, articles.*
FROM table_a JOIN articles ON articles.user_id = table_a.user_id
WHERE table_a.user_id = 1
ORDER BY table_a.created_at ASC;